Tech lead of Meta’s feature infra and end-to-end model serving solutions:

Tech lead of Feature Serving Platform, which advances ads delivery architecture based on data pattern, compute need and networking, by developing low latency, performant and highly scalable solutions (cross-region replication, caching, low-level optimization, etc)

Tech lead of end-to-end ads ML solutions span across feature engineering, model training and model serving, supporting a wide range of ML use cases for ads targeting, delivery and supply

Led two backend efforts:

The rebuild of the company’s core business: cashout, taking care of millions of transactions every day. Led the system design and development of the new event-driven system that manages the money flow, aiming at high reliability, scalability, fast experiments and flexibility in supporting fast-changing business requirements

Kotlin technical stack, which is a new technical stack that the company is adopting (replacing C#). Led the effort to build apps framework with a careful selection of third party libraries and drive the adoption of gRPC covering the work on the software engineering side and DevOps side (K8S, Spinnaker, etc)

Tech lead for identity Android team and a few cross-platform efforts

Tech lead for Google identity products including: Google sign-in on Android, Smart Lock for Passwords on Android, Android OneTap, SmartSetup (setting up a new device using the Android or iOS device), FIDO, phone-as-a-security-key and identity mobile infra

Leading 15+ SWEs across different Google teams

Tech lead for Android OTA

Responsible for OTA Android client, servers (including OTA API, OTA partner dashboard and OTA delivery service) and data pipelines

Core developer of Android auth server, supporting the authentication of billions of Android devices with high scalability (millions of QPS) and reliability.